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Academy of Sciences, Nov. 4.-M. Des Cloizeaux, President, in the chair.-Instrument for measuring the coefficient of elasticity of metals, by Mr. Phillips. This is a large spiral spring and balance wheel, the former made of the metal to be examined. -Rôle and mechanism of the local lesion in infectious diseases, by M. Ch. Bouchard. Whereas in absolute immunity, there is, after inoculation, neither general infection nor local lesion, and in total absence of immunity, general infection, often without local lesion, in relative, normal, immunity there is local lesion mostly without general infection; in the last case, as experiment shows, it is not the local lesion that causes the immunity, but vice versa. Inoculating vaccinated and unvaccinated rabbits with pyocyanic Bacillus, the author found, in the former, rapid appearance of leucocytes, all having many Bacteria, which were soon resolved into granulations, and in sixteen hours were quite gone ; while the free Bacteria soon decreased in number. In the other animals, few leucocytes, no Bacilli in them, and free Bacteria multiplying.-Statistics of preventive treatment of rabies, from February 9, 1888, to September 15, 1889, at the Pasteur Institute of Rio de Janeiro (Dr. Ferreira dos Santos), by the Emperor of Brazil. Of 156 who underwent full treatment, only one died, and not certainly from rabies; this gives a mortality of 064 per cent.-On the velocity of wind at the top of the Eiffel Tower, by M. A. Angot. Three months' observations give a mean of 705 m. as compared with 2'24 in. at the Central Meteorological Office (21 m. from the ground). While at low stations there is a minimum at sunrise and a maximum at I p.m., the Eiffel (like mountains) showed a minimum about 10 a.m. and a maximum at II p.m. (while at midday there was but a slight upward bend of the curve).-On phenyl-thiophene, by M. A. Renard. This is prepared by passing through an iron tube, heated to dark redness, vapours of toluene and of sulphur, and distilling the condensed product. Analysis gave the formula CH-CH3S. With bromine, nitric acid, and sulphuric acid, substitution products are obtained. Researches on digitaline and tanghinine, by M. Arnaud. By heating digitaline with baryta-water to 180° for several hours, it combines with water yielding the compound C31H52011, from which the formula C3H5O10 is deduced for digitaline. The formula of tanghinine, similarly deduced, is C-HO. This formula differs from that of Schmiedeberg for digitaline, viz. CHO-.-Studies on the embryology of the axolotl, by M. F. Houssay. He describes the mechanics of segmentation, the origin and development of the peripheral nervous system, and the morphology of the head.-On the cytoplasm and the nucleus in Noctiluci, by M. G. Pouchet. Flemming's chromatine seems to be formed of two substances, chromatoplasm and hyaloplasm; and the proportion of the former increases as gemmation proceeds; hence the more and more lively colour of the segmented nuclei.-On the parasitic castration of Typhlocyba by a Hymenopterous larva (Aphelopus melaleucus, Dalm.), and a Dipterous larva (Atelenevra spuria, Meig.), by M. A. Giard. In T. hippocastani, the eight terminal branches of the penis are reduced to six, four, or three. A pair of curious invaginations on the ventral surface of the body are also shortened.- Action of serum of diseased or vaccinated animals on pathogenic microbes, by MM. Charrin and Roger. Operating with the pyocyanic Bacillus and rabbits, they found the serum of vaccinated animals more adverse to growth of the Bacillus than normal serum, but somewhat less than that of the diseased animals.-Contribution to the semeiological and pathogenic study of rabies, by M. G. Ferré. Inoculating by trepanation, and with stronger virus than before, they found that the respiratory acceleration appeared on the fourth instead of the fifth day; the respiratory centres being invaded correspondingly sooner. The symptoms could not be attributed to thermal elevation, the maximum of this occurring later. -Statistics of preventive inoculations against yellow fever, by Dr. Domingos Freire. From 1883 to 1889, there were 10,524 persons inoculated in Brazil; and the mortality was 0'4 per cent. The deaths of non-vaccinated during the four epidemics were over 6500.-On the modifications in normal gaseous exchanges of plants by the presence of organic acids, by M. L. Mangin. He injected malic, citric, and tartaric acids into leaves of Japanese prick-wood, bay rose, and lilac, and found these leaves to behave like Cacteæ and Crassulaceæ. In the dark, the volume of carbonic acid liberated is greater than that of oxygen absorbed ; and in the light, there is emission of oxygen without correlative absorption of carbonic acid. On the existence of numerous zeoliths in the gneissic rocks of Upper Ariège, by M. A. Lacroix.

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PHYSICAL SOCIETY, at 5.-On the Electrification due to the Contart 1 Gases and Liquids: J. Enright-On the Effect of Repeated Heating ar Cooling on the Electrical Resistance and Temperature Coethat of Annealed Iron: H. Tomlinson, F.R.S.-Notes on Geometrical (pia Part II.: Prof. S. P. Thompson.

INSTITUTION OF CIVIL ENGINEERS, at 7.30-The New Harbour and Breakwater at Boulogne-sur-Mer : S. C. Bailey.

MONDAY, NOVEMBER 18. ARISTOTELIAN SOCIETY, at 8-Scepticism: S. Alexander,

TUESDAY, NOVEMBER 19. INSTITUTION OF CIVIL ENGINEERS, at 8.-Water-Tube Steam-Boilers Sa Marine Engines: John I. Thornycroft. ROYAL STATISTICAL SOCIETY, at 7-45.-Opening Address by the President Dr. T. Graham Balfour, F.R.S.

WEDNESDAY, NOVEMBER 20. GEOLOGICAL SOCIETY, at 8.-On the Occurrence of the Striped Hyæna a the Tertiary of the Val d'Arno: R. Lydekker.-The Catastruple of Kantzorik, Armenia: M. F. M. Corpi. Communicated by W H. Hude ston, F.R.S.-On a New Genus of Siliceous Sponges from the Lower Calcareous Grit of Yorkshire: Dr. J. G. Hinde. ROYAL METEOROLOGICAL SOCIETY, at 7-Second Report of the Thunes storm Committee-Distribution of Thunderstorms over England an Wales, 1871-87: William Marriott-On the Change of Temperatur which accompanies Thunderstorms in Southern England: G. M. Whipate -Note on the Appearance of St. Elmo's Fire at Walton-on the Naz September 3, 188): W. H. Dines,-Notes on Cirrus Formation: H Hela Clayton. A Comparison between the Jordan and the Cample:II-Stokra Sunshine Recorders; F. C. Bayard -Sunshine: A. B. MacDowall On Climatological Observations at Ballyboley, Co. Antrim: Prof. 5. A Hill. SOCIETY OF ARTS, at 8.-Opening Address by the Chairman, the Duke of Abercorn, C. B.

UNIVERSITY COLLEGE CHEMICAL AND PHYSICAL SOCIETY, at 43.Pyridine and the Alkaloids: Dr. N. Collie.

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Whitham : 'Steam-Engine Design."-N. J. L.
Hake: Coloured Analytical Tables
Tidy : The Story of a Tinder Box
Jamieson: "Magnetism and Electricity
Ball:

"Time and Tide; a Romance of the Moon Letters to the Editor:

Specific Inductive Capacity.-Prof. Oliver J. Lodge,
F.R.S. . . .

Who discovered the Teeth in Ornithorhynchus ?-Prof.
W. H. Flower, F. R. S.; Oswald H. Latter
"La Pietra Papale."-Dr. P. L. Sclater, F.R.S.
On a Mite of the Genus Tetranychus found infesting
Lime-trees in Leicester Museum Grounds.-F. R
Rowley

Retarded Germination.-E. A.

The Relation of the Soil to Tropical Diseases. -
Surgeon A. Ernest Roberts

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II.

The Earthquake of Tokio, April 18, 1889.-Prof.
Cargill G. Knott

A Brilliant Meteor.-Paul A. Cobbold
On the Hardening and Tempering of Steel.
(Illustrated.) By Prof. W. C. Roberts-Austen,
F.R.S..

Prof. Weismann's Essays." By Dr. St. George Mivart, F. R.S.

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MR. WALTER SCOTT'S PUBLICATIONS.

Crown 8vo, Cloth. Price 3s. 6d. per Vol.; Half Morocco, 6s. 6d. CONTEMPORARY SCIENCE SERIES. Edited by HAVELOCK ELLIS.

Most of the Volumes will be Illustrated, containing between 300 and 400 pages. The first Volume will be issued on October 25, 1889. Others to follow at short intervals.

The Contemporary Science Series will bring within general reach of the English-speaking public the best that is known and thought in all depart ments of modern scientific research. The influence of the scientific spirit is How rapidly spreading in every field of human activity. Social progress, it is felt, must be guided and accompanied by accurate knowledge-knowledge which is, in many departments, not yet open to the English_reader. In the Contemporary Science Series all the questions of modern life-the Vous social and politico-economical problems of to-day, the most recent researches in the knowledge of man, the past and present experiences of the race, and the nature of its environment-will be frankly investigated and clearly presented. The first Volumes of the Series will be:THE EVOLUTION OF SEX. By Prof. PATRICK GEDDES and JARTHUR THOMSON. With 104 Illustrations, and about 322 pages. Ready October 25. [Ready November 25. By Dr. ISAAC TAYLOR. With [Ready December 25.

ELECTRICITY IN MODERN LIFE. By G. W. DE TUNZRLMANN. With 88 Illustrations.

THE ORIGIN OF THE ARYANS. mumerous Illustrations.

The following writers, among others, are preparing Volumes for this Series:

Prof E. D. Cope, Prof. G. F. Fitzgerald, Prof. J. Geikie, G. L. Gomme, E. C. K. Gonner, Prof. J. Jastrow (Wisconsin), E. Sidney Hartland, Prof. CH. Herford, J. Bland Sutton, Dr. C. Mercier, Sidney Webb, Dr. S.ms Woodhead, Dr. C. M. Woodward (St. Louis, Mo.), &c.

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NOTES ON SPORT AND ORNITHOLOGY.

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JUST PUBLISHED.

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EXPERIMENTAL SCIENCE:

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E. & F. N. SPON, 125 Strand, London.

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Now Ready, Vol. III., Papilionide and Hesperidæ, completing the Work, SOUTH AFRICAN BUTTERFLIES: A Monograph of the Extra-Tropical Species. By ROLAND TRIMEN, F.R.S., F.L.S., F.Z.S., F. Ent. S., &c., Curator of the South African Museum, Cape Town; assisted by JAMES HENRY BOWKER, F.Z.S., F.R.G S., &c., &c., Colonel (Retired) in the Cape Service; Late Commandant of the Frontier Armed and Mounted Police; Gov ernor's Agent in Basutoland, and Chief Commissioner at the Diamond Fields of Griqualand West.

The Work is published in Three Volumes, Demy 8vo, Cloth, with Twelve Plates. Price for the Complete Work, £2 12s. 6d.

London: TRÜBNER & CO., Ludgate Hill.

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AMERICAN MINERALS.

Prof. A. E. FOOTE, having been fully occupied with the numerous customers who have visited his branch at No. 14 rue Desaix, Paris, has been unable to fill the many orders received by mail, and on this account he will remain at the above place until December 15, and will be glad to meet Collectors there, as well as to fill orders for Minerals received previous to that date.

The Exposition Grounds will remain open to the public, and Porte Desaix, only a minute's walk from his Store, is one of the four entrances to be kept open. Many of the rare and choice Minerals shown in his exhibit will be removed to 14 rue Desaix.

Here also will be found the most beautiful Red Vanadinites ever seen, with Crystals remarkable for large Size and brilliant Colour, and at very low Prices; really showy Specimens are sold at from 28. to 55. Also beautiful Red Wulfenites from the Red Cloud Mine, Arizona: fine single Crystals are sold at from is. to 5s.

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Specimens sent on Approval.

Especial attention is called to the appropriateness of these beautiful Minerals

for Christmas and other Presents.

Prof. FOOTE has for Sale, at 1223 Belmont Ave., Philadelphia, Pa., U.S.A., The Largest Stock of Scientific Books in the World,

and will exchange for good Minerals and for Books. Send for Catalogue, specifying in what branch of Science you are interested.

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Edited by JAMES BRITTEN, F. L.S., British Museum.
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